Lens



FIG. 1 is a front elevational view of the lens;

FIG. 2 is a rear elevational view of the lens;

FIG. 3 is a left elevational view of the lens;

FIG. 4 is a right elevational view of the lens;

FIG. 5 is a top plan view of the lens;

FIG. 6 is a bottom plan view of the lens;

FIG. 7 is a perspective view of the lens; and,

FIG. 8 is a cross-sectional view as taken along the line 8-8 of FIG. 5. 

CLAIM The ornamental design for a lens, as shown and described. 